B3069

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The switch that failed and generated this diagnostic trouble code (DTC) is wired to the driver door module (DDM). The DDM includes the switch state in a Serial Data Class 2 message that it sends to the rear integration module (RIM), which is the master of all lock operations. If the RIM determines that the Unlock request is a valid request, it sends its OK back to each door module to unlock the doors.

CONDITIONS FOR RUNNING THE DTC
The DDM must be powered and can not have B1327-Battery Voltage Low or B1327-Battery Voltage High set for this DTC to set.

CONDITIONS FOR SETTING THE DTC
If the DDM, detects that the circuit is closed for more than 30 continuous Seconds in the unlock position, it sets the DTC.

ACTION TAKEN WHEN DTC SETS
The DDM ignores inputs from this switch and stops sending messages for it.

CONDITIONS FOR CLEARING THE DTC
The DDM clears this DTC when the switch signal is not received during one of the checks of the circuit for 600 milliseconds, or when the vehicle ignition status changes from OFF to Run.

DIAGNOSTIC AIDS
A sticking key cylinder unlock switch can cause this DTC to set.